Extrusion pipe shielding rubber strip

Abstract

The utility model discloses an extrusion pipe shielding rubber strip which comprises a rubber strip body, a sealing portion is arranged on one side of the rubber strip body, the rubber strip is of a long-strip-shaped structure, one side of the sealing portion is of a step type structure, and an avoiding hole is further formed in the sealing portion. The utility model has the beneficial effects that the adhesive tape is high in size precision, the shielding size is not related to the pasting level of a worker, and the shielding quality is high; the nylon adhesive tape can be repeatedly used, and the average single-time material cost is lower than that of a shielding adhesive tape; the nylon adhesive tape clamping mode is more reliable than the adhesive tape bonding mode; when the masking tape is bonded, the working procedures of scribing, bonding, cutting and the like exist, and the working procedures are many and complex. And the rubber strip shielding only has one clamping procedure, so that the procedures are few and simple. When the shield is removed, the adhesive tape is simpler than an adhesive tape.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling plate edge shielding technical field, concretely is a kind of extrusion pipe shielding adhesive tape. BACKGROUND

[0002] Battery pack liquid cooling plate is directly contacted with battery cell, reliable insulation is needed between battery cell and cold plate, so there is a powder spraying process in the production process of liquid cooling plate, and shielding is needed for part without coating coverage.

[0003] Conventional liquid cooling plate edge shielding is realized by artificial pasting shielding adhesive tape, for the workpiece with step at edge, shielding adhesive tape is difficult to paste, and the straightness of adhesive tape edge is poor, and it is usually needed to cut manually after pasting, so the process is complex.The combination between adhesive tape and cold plate relies on the viscosity of adhesive tape, if pre-pasting, there is a risk of adhesive tape delamination under the effect of flushing in powder spraying pretreatment stage, so shielding is usually pasted after pretreatment.Shielding after pretreatment will directly affect production rhythm, and there is a risk of secondary pollution of cold plate. SUMMARY

[0004] The utility model aims at providing a kind of extrusion pipe shielding adhesive tape to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of extrusion pipe shielding adhesive tape, including adhesive tape body, the adhesive tape body one side is equipped with sealing portion, the adhesive tape is long strip structure, the sealing portion one side is step structure, the sealing portion inside is also equipped with avoiding hole.

[0006] Further optimization, the step structure is composed of first step portion and second step portion.

[0007] Further optimization, the sealing portion is equipped between the first step portion and second step portion.

[0008] Further optimization, the sealing portion is rectangular cavity, and the avoiding hole is equipped in one side of the cavity.

[0009] Further optimization, the adhesive tape body is high-temperature nylon material.

[0010] Beneficial effects

[0011] The extrusion pipe shielding adhesive tape provided by the utility model has high size precision of adhesive tape itself, shielding size is not related to the pasting level of worker, and shielding quality is high;nylon adhesive tape can be reused, and average single material cost is lower than shielding adhesive tape;nylon adhesive tape is more reliable in the mode of clamping than in the mode of adhesive tape bonding;when adhesive tape is bonded, there are processes such as marking, pasting and cutting, so the processes are more and more complex.Adhesive tape shielding only has a clamping process, so the processes are less and simple.Adhesive tape is more convenient than adhesive tape when shielding is removed. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic view of the utility model;

[0013] Figure 2 It is the whole structure main view schematic view of the utility model;

[0014] Figure 3 It is the whole structure deformation degree schematic view of the utility model;

[0015] Figure 4 It is the whole structure and product corresponding structure schematic view of the utility model. DETAILED DESCRIPTION

[0016] The following is the specific embodiment of the utility model and is combined with the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0017] EMBODIMENT

[0018] As Figures 1-4 The utility model discloses an extrusion pipe shielding rubber strip, including rubber strip body 1, the sealing portion 2 is seted up on one side of rubber strip body 1, and the rubber strip 1 is long strip structure, and the sealing portion 2 one side is the stepped structure, and the sealing portion 2 inside is also seted up with the hole 3 that avoids.

[0019] In this embodiment, the stepped structure is composed of the first step portion 4 and the second step portion 5.

[0020] The sealing portion 2 is set between the first step portion 4 and the second step portion 5.

[0021] The sealing portion 2 is a rectangular cavity, and the hole 3 that avoids is set on one side of the cavity.

[0022] The rubber strip body 1 is made of high-temperature nylon material.

[0023] The shielding rubber strip is long strip structure, the length is designed according to the step surface of product, the material is selected from high-temperature nylon, can resist 200 DEG C high temperature of powder line, can also be recycled. From the cross section, the clamping port of shielding rubber strip is also stepped, and is buckled with the step surface. There is a half waist-shaped hole for avoiding in the upper and lower step positions, which can ensure that the rubber strip can be clamped in place (the rubber strip stop port can contact the step edge surface) while exhausting. The internal pore can also absorb the thermal expansion amount, to prevent the shielding rubber strip from moving and separating due to high temperature;

[0024] Clamping effectiveness calculation:

[0025] Nylon elastic modulus: E=2.7Gpa

[0026] Nylon tensile strength: σb=80Mpa

[0027] Deformation region length: H = 9.5mm;

[0028] The deformation can be restored after the nylon rubber strip is taken out, and belongs to elastic deformation. The force generated by the deformation is (the average deformation of the cross section is 0.042mm, the cross section A = 4.2*1250 = 5250mm 2 ):

[0029] F1 = δ * (E * A) / H = 0.042 / 1000 * (2.7 * 10 9 *5250 / 10 6 ) / (9.5 / 1000) = 62668N

[0030] Force transmitted to the clamping surface:

[0031] F2 = F1 * L1 / L2 = 62668 * 2.1 / 10 = 13160N;

[0032] The friction coefficient between nylon and aluminum alloy is 0.2-0.4, and μ = 0.2 is taken as an example

[0033] Then the friction force between the nylon rubber strip and the liquid cooling plate is:

[0034] f = μ * F2 = 0.2 * 13160 = 2632N

[0035] The friction force can resist the falling of the shielding rubber strip, and can also ensure the shielding and sealing.

[0036] When the liquid cooling plate with two side step structures needs to be shielded, the clamping strip is manually clamped to the step structure. Since the force required for overall opening is too large (13160N), local opening is adopted, and segmented clamping is adopted to push it into place to complete the shielding. The extruded pipe shielding rubber strip is made of nylon material, which can provide high connection strength; the extruded pipe shielding rubber strip adopts a special cross section, which is specially designed according to the step surface of the liquid cooling plate.

[0037] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An extruded tube masking tape characterized by: The utility model relates to a sealing strip, including the sealing strip body (1), the sealing part (2) is set up to one side of sealing strip body (1), sealing strip body (1) is the strip structure, the sealing part (2) one side is the step structure, the sealing part (2) inside still sets up to avoid the hole (3).

2. The extruded tube masking tape of claim 1, wherein: The step structure is composed of a first step portion (4) and a second step portion (5).

3. The extruded tube masking tape of claim 2, wherein: The sealing portion (2) is set up between the first step portion (4) and the second step portion (5).

4. The extruded tube masking tape of claim 1, wherein: The sealing portion (2) is a rectangular cavity, and the avoiding hole (3) is set up on one side of the cavity.

5. The extruded tube masking tape of claim 1, wherein: The sealing strip body (1) is made of high-temperature nylon.

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