A wire passing device and electric control box

Abstract

The present application relates to the field of sealing parts, and discloses a wire-passing device and an electric control box. The wire-passing device connects a plurality of flexible sheets by setting a sealing structure to completely seal the inner hole of the fixed ring. This ensures that before threading, the wire-passing device installed in the wire-passing hole can completely close the wire-passing hole to prevent snakes, insects, rats, ants or other debris from entering the housing of the device, thereby ensuring the normal installation and use of the device in the later stage. When threading is required during the installation process, the sealing structure is torn so that the plurality of flexible sheets can be deformed to open the inner hole of the fixed ring, and the wire is passed through the inner hole of the fixed ring to complete the threading. The electric control box provided in the embodiment of the present application is provided with the above-mentioned wire-passing device, so that before threading, the wire-passing device can better seal the wire-passing hole to prevent debris from entering the electric control box, thereby ensuring the subsequent installation and use of the electric control box.

Description

Technical Field

[0001] The present application relates to the field of sealing parts, and in particular to a wire passing device and an electric control box. Background Art

[0002] At present, some equipment shells are often provided with wire holes for power supply lines to pass through. In order to ensure the sealing and wire passing requirements, wire passing devices are installed at the wire holes. Taking the wire passing rubber ring as an example, the wire harness passes through the wire passing rubber ring to prevent the wire from being cut by the edge of the wire passing hole of the shell. However, when the wire is not threaded, the existing wire passing device has pores and poor sealing, which makes it easy for debris to enter the shell of the equipment through the wire passing device, affecting the normal installation and use of the equipment in the later stage. Summary of the invention

[0003] The present application aims to improve the problem of poor sealing of the existing wire-passing device before the wire is inserted into the cable.

[0004] In order to improve the above-mentioned problems, on the first aspect, the present application provides a wire-passing device, a fixed ring and a plurality of flexible sheets connected to the fixed ring, wherein the plurality of flexible sheets are arranged circumferentially on the inner peripheral side of the fixed ring, and the plurality of flexible sheets are connected by a tearable sealing structure, and the sealing structure and the plurality of flexible sheets jointly seal the inner hole of the fixed ring. In an embodiment of the present application, a plurality of flexible sheets are connected by setting a sealing structure to completely seal the inner hole of the fixed ring. This ensures that before threading, the wire-passing device installed in the wire-passing hole can completely close the wire-passing hole to prevent snakes, insects, rats, ants or other debris from entering the housing of the device, thereby ensuring the normal installation and use of the device in the later stage. When threading is required during the installation process, the sealing structure is torn so that the plurality of flexible sheets can be deformed to open the inner hole of the fixed ring, and the wire is passed through the inner hole of the fixed ring to complete the threading.

[0005] In an optional embodiment, each flexible sheet is fan-shaped, and the arc edge of the flexible sheet is connected to the inner circumference of the fixing ring. The flexible sheet is arranged in a fan shape so that after the sealing structure is torn, one end of the central angle can be better deformed and lifted up, thereby opening the inner hole of the fixing ring.

[0006] In an optional embodiment, the wire passing device includes four flexible sheets, each of which is a right-angled sector, and the right-angled sides of the four flexible sheets together form a cross-shaped gap, and the cross-shaped gap is sealed by a sealing structure. The flexible sheets are all arranged in a right-angled sector, so that the wire harness can be placed in the middle of the fixing ring as much as possible after threading, and the pre-tightening force of each flexible sheet on the wire harness is relatively balanced, and the sealing effect is good.

[0007] In an optional embodiment, in the axial direction of the fixing ring, the thickness of the sealing structure is less than the thickness of the flexible sheet. The thickness of the sealing structure is less than the thickness of the flexible sheet, which can better achieve tearing. Even if the sealing structure and the flexible sheet have the same strength, because the thickness of the sealing structure is smaller, when the flexible sheet and the sealing structure are subjected to force, they tend to tear from the sealing structure, thereby effectively preventing damage to the flexible sheet.

[0008] In an optional embodiment, the sealing structure includes a plurality of sealing strips, the number of the sealing strips is consistent with the number of the flexible sheets, the gap between two adjacent flexible sheets is sealed by the sealing strips, one end of each sealing strip is connected to the inner circumference of the fixing ring, and the other end intersects at the center of the fixing ring, each sealing strip includes a first section and a second section, and the first section is closer to the center of the fixing ring than the second section;

[0009] In the axial direction of the fixing ring, the thickness of the first section is smaller than the thickness of the second section.

[0010] By setting the thickness of the first section to be smaller than that of the second section, the entire sealing structure is thinner near the center of the fixing ring and thicker near the inner circumference of the fixing ring. Therefore, when the sealing structure is torn, it will first crack from the center, so that the circumferential corner of the flexible sheet will first become the free end of the flexible sheet, making it easier to open the flexible sheet, thereby opening the inner hole of the fixing ring. This can also better ensure that the wire harness passing through the wire passing device is close to the center of the fixing ring.

[0011] In an optional embodiment, the second section includes a first subsection extending along the length direction of the sealing strip and two second subsections, the two second subsections are respectively connected to both sides of the first subsection and are respectively connected to the two flexible sheets;

[0012] In the axial direction of the fixing ring, the thickness of the first section is smaller than the thickness of the second section.

[0013] It can be seen that compared with the second section, the first section is closer to the middle of the gap between two adjacent flexible sheets, and the thickness of the first section is smaller than that of the second section, so that when the second section of the sealing strip is torn, it will crack from the first section, that is, along the middle of the second section. This can prevent the crack from extending irregularly to the flexible sheet and destroying the structure of the flexible sheet.

[0014] In an optional embodiment, a tip protruding along the length direction of the sealing strip is provided at one end of the first section away from the center of the fixing ring, and the tip of the tip is connected to the middle position of the second section in the width direction. The thickness of the first section is less than that of the second section. After the tip is provided, when the sealing strip is torn, no matter whether the crack position in the first section is in the middle position in the width direction of the first section, when the crack is torn to the second section, the crack will be guided to the tip, and then enter the second section from the tip of the tip, ensuring that the crack position of the second section starts from the middle in the width direction. Therefore, the tip guides the cracking direction of the sealing structure, avoiding the risk of the flexible sheet being accidentally torn.

[0015] In an optional embodiment, the fixing ring is provided with a slot extending around its outer circumference. By providing the slot, the inner edge of the wire hole of the device can be inserted into the slot to achieve installation of the wire passing device. This structure has better stability.

[0016] In an optional embodiment, the fixing ring is flexible, and a mounting groove is provided on at least one side of the fixing ring in the axial direction. In the process of installing the wire-passing device into the wire-passing hole of the device, the flexible fixing ring is squeezed to deform it so as to be inserted into the wire-passing hole. The installation groove is provided on at least one side of the fixing ring so that the user can squeeze and deform the fixing ring more easily, making the installation of the wire-passing device time-saving and labor-saving.

[0017] In an optional embodiment, the wire passing device is made of rubber material and is integrally formed. The wire passing device is made of rubber material and is integrally formed, so that the overall sealing and stability of the wire passing device are better.

[0018] In a second aspect, the present application provides an electric control box, on which a wire-passing hole is provided, and a wire-passing device provided in the first aspect is provided at the wire-passing hole, and the outer peripheral side of the fixing ring of the wire-passing device is connected to the inner side of the wire-passing hole. The electric control box provided in the embodiment of the present application is provided with the wire-passing device, so before threading the wires, the wire-passing device can better seal the wire-passing hole, prevent debris from entering the electric control box, and ensure the subsequent installation and use of the electric control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a wire passing device provided by an embodiment of the present application from a first perspective;

[0020] Figure 2 for Figure 1 Schematic diagram of the middle part II;

[0021] Figure 3 for Figure 1 The cross-sectional view along the AA direction;

[0022] Figure 4 A schematic diagram of a wire passing device provided by an embodiment of the present application from a second viewing angle;

[0023] Figure 5 A schematic diagram of an electric control box provided in accordance with an embodiment of the present application.

[0024] Explanation of the reference numerals: 100 - wire passing device; 110 - fixing ring; 112 - card slot; 114 - installation slot; 120 - flexible sheet; 130 - sealing structure; 131 - sealing strip; 132 - first section; 133 - tip; 134 - second section; 135 - first subsection; 136 - second subsection; 200 - electric control box. DETAILED DESCRIPTION

[0025] A wire hole is often provided on the housing of the device for the cable to pass through. When the wire hole is opened on a hard plate such as sheet metal, the inner edge of the wire hole may cut the cable, causing cable damage, leakage, etc. In the prior art, there is a method of protecting the cable by installing a wire-passing device with pores and a soft material in the wire hole. The wire hole of the device housing can easily become a passage for snakes, insects, rats, ants or other debris to enter. Even if the existing wire-passing device can seal the wire hole together with the cable to a certain extent after threading, the pores of the wire-passing device cannot be sealed before threading, which makes it easy for debris to enter through the pores of the wire-passing device, affecting the subsequent installation and use of the equipment.

[0026] In order to improve the problem that the wire passing device in the current technology cannot seal the wire passing hole before threading, the embodiment of the present application provides a wire passing device, which can better seal the wire passing hole before threading. In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of a first viewing angle of a wire passing device 100 provided in one embodiment of the present application. Figure 1 As shown, the wire-passing device 100 includes a fixing ring 110 and a plurality of flexible sheets 120 connected to the fixing ring 110. The plurality of flexible sheets 120 are arranged circumferentially on the inner peripheral side of the fixing ring 110. The plurality of flexible sheets 120 are connected by a tearable sealing structure 130. The sealing structure 130 and the plurality of flexible sheets 120 jointly seal the inner hole of the fixing ring 110. By providing a tearable sealing structure 130, the inner hole of the fixing ring 110 is completely sealed by the sealing structure 130 and the flexible sheets 120, so that the wire-passing device 100 can well seal the wire-passing hole of the device before threading. When threading, the sealing structure 130 is torn to open the flexible sheet 120, and the fixing ring 110 can be used for the cable to pass through.

[0028] In the present embodiment, the wire-passing device 100 is made of rubber material and is integrally formed. This makes the overall sealing and stability of the wire-passing device 100 better. The use of rubber material makes the flexible sheet 120 and the fixing ring 110 have better elasticity, so that the fixing ring 110 can have a certain pre-tightening force with the wire-passing hole, and the installation is more stable; the flexible sheet 120 can also be placed on the cable after threading, and also has a certain degree of sealing effect. Of course, in other optional embodiments, the fixing ring 110 and the flexible sheet 120 may not be integrally formed, and the fixing ring 110 may also be rigid and fixed to the wire-passing hole by means of clamping, welding, etc. Of course, in other embodiments, the sealing structure 130 may be made of non-flexible materials, such as brittle materials, so that the sealing device is easier to tear than the flexible sheet 120. In this case, the connection between the sealing structure 130 and the flexible sheet 120 can be other methods, such as bonding.

[0029] Furthermore, each flexible sheet 120 of the present embodiment is fan-shaped, and the arc edge of the flexible sheet 120 is connected to the inner circumference of the fixing ring 110. The flexible sheet 120 is configured to be fan-shaped, so that after the sealing structure 130 is torn, one end of the central angle can be better deformed and lifted, thereby opening the inner hole of the fixing ring 110.

[0030] like Figure 1 As shown, in the present embodiment, the wire passing device 100 includes four flexible sheets 120, each of which is a right-angled sector, and has the same size and structure. The right-angled sides of the four flexible sheets 120 together form a cross-shaped gap, and the cross-shaped gap is sealed by the sealing structure 130. By setting each flexible sheet 120 to a right-angled sector of the same shape and size, the wiring harness can be placed in the middle position of the fixing ring 110 as much as possible after threading, and the pre-tightening force of each flexible sheet 120 on the wiring harness is relatively balanced, and the sealing effect is good. In other embodiments of the present application, the number of flexible sheets 120 can be adjusted as needed, such as being set to three sheets, or five sheets or more.

[0031] In this embodiment, in the axial direction of the fixing ring 110, the thickness of the sealing structure 130 is less than the thickness of the flexible sheet 120. The thickness of the sealing structure 130 is less than the thickness of the flexible sheet 120, which can better achieve tearing. Even as shown in this embodiment, the sealing structure 130 and the flexible sheet 120 are integrally formed with the same material, and the material strength of the two is the same. However, because the thickness of the sealing structure 130 is relatively small, when the flexible sheet 120 and the sealing structure 130 are subjected to force, they also tend to split from the sealing structure 130, thereby effectively preventing the flexible sheet 120 from being damaged.

[0032] Figure 2 for Figure 1 Schematic diagram of Part II. Please refer to Figure 1 and Figure 2 The sealing structure 130 of this embodiment includes a plurality of sealing strips 131. The number of the sealing strips 131 is consistent with the number of the flexible sheets 120. The gap between two adjacent flexible sheets 120 is sealed by the sealing strips 131. Figure 1 As shown, the sealing structure 130 of the present application includes four sealing strips 131, and the four sealing strips 131 are respectively located in the four gaps formed by the four flexible sheets 120. One end of each sealing strip 131 is connected to the inner circumference of the fixing ring 110, and the other end intersects at the center of the fixing ring 110. Each sealing strip 131 includes a first section 132 and a second section 134, and the first section 132 is closer to the center of the fixing ring 110 than the second section 134. In the axial direction of the fixing ring 110, the thickness of the first section 132 is less than the thickness of the second section 134.

[0033] By setting the thickness of the first section 132 to be smaller than the thickness of the second section 134, the entire sealing structure 130 is thinner near the center of the fixing ring 110 and thicker near the inner circumference of the fixing ring 110. Therefore, when the sealing structure 130 is torn, it will first be torn from the center, so that the circumferential angle of the flexible sheet 120 first becomes the free end of the flexible sheet 120, which is convenient for the flexible sheet 120 to be opened, thereby opening the inner hole of the fixing ring 110. In this way, it can also better ensure that the wire harness passing through the wire passing device 100 is close to the center of the fixing ring 110.

[0034] Furthermore, the second section 134 includes a first section 135 and two second sections 136 extending along the length direction of the sealing strip 131, and the two second sections 136 are respectively connected to the two sides of the first section 135 and are respectively connected to the two flexible sheets 120. In the axial direction of the fixing ring 110, the thickness of the first section 135 is less than the thickness of the second section 136. It can be seen that compared with the second section 136, the first section 135 is closer to the middle of the gap between two adjacent flexible sheets 120, and the thickness of the first section 135 is less than that of the second section 136, so that when the second section 134 of the sealing strip 131 is torn, it will crack from the first section 135, that is, it will crack along the middle of the second section 134. In this way, it can be avoided that the crack extends irregularly and causes the crack to the flexible sheet 120, thereby destroying the structure of the flexible sheet 120.

[0035] like Figure 2As shown, the end of the first section 132 away from the center of the fixing ring 110 is provided with a tip 133 protruding along the length direction of the sealing strip 131, and the tip of the tip 133 is connected to the middle position of the second section 134 in the width direction. The thickness of the first section 132 is less than the thickness of the second section 134. After the tip 133 is provided, when the sealing strip 131 is torn, no matter whether the crack position of the first section 132 is in the middle position of the width direction of the first section 132, when the crack reaches the second section 134, the crack will be guided to the tip 133, and then enter the second section 134 from the tip of the tip 133, ensuring that the crack position of the second section 134 starts from the middle of the width direction. Therefore, the tip 133 has a guiding effect on the cracking direction of the sealing structure 130, avoiding the risk of the flexible sheet 120 being accidentally torn. In this embodiment, the tip of the pointed portion 133 extends to the first sub-portion 135 of the second segment 134 , so that the tearing process of the second segment 134 must start from the first sub-portion 135 close to the middle.

[0036] Figure 3 for Figure 1 The cross-sectional view along the AA direction. Figure 3 As shown, the fixing ring 110 is provided with a slot 112 extending around its outer circumference. By providing the slot 112, the inner edge of the wire hole of the device can be inserted into the slot 112 to achieve the installation of the wire passing device 100. The design of this slot 112 makes the wire passing device 100 more stable after installation. It can be understood that in other embodiments of the present application, the outer circumference of the fixing ring 110 may not be provided with the slot 112, and the fixing ring 110 can be installed by interference fit with the wire hole of the device housing.

[0037] Figure 4 A second perspective schematic diagram of a wire passing device 100 provided for an embodiment of the present application. Furthermore, the fixing ring 110 is provided with four mounting grooves 114 on one side thereof in the axial direction. The four mounting grooves 114 are evenly spaced on the fixing ring 110, and the mounting grooves 114 extend from the inner peripheral side to the outer peripheral side in the radial direction of the fixing ring 110. In the process of installing the wire passing device 100 into the wire passing hole of the equipment, the flexible fixing ring 110 is deformed by squeezing it so as to be inserted into the wire passing hole. Providing the mounting groove 114 on one side of the fixing ring 110 can make it easier for the user to squeeze and deform the fixing ring 110, so that the installation of the wire passing device 100 is time-saving and labor-saving. In other embodiments of the present application, the mounting grooves 114 may be provided on both sides of the fixing ring 110 in the axial direction, or the mounting grooves 114 may not be provided.

[0038] Figure 5A schematic diagram of an electric control box 200 provided in an embodiment of the present application. The electric control box 200 provided in the embodiment of the present application is provided with a wire passing hole, and a wire passing device 100 provided in the embodiment of the present application is provided at the wire passing hole. The outer peripheral side of the fixing ring 110 of the wire passing device 100 is connected to the inner side of the wire passing hole. Specifically, the inner edge of the wire passing hole is inserted into the card slot 112 of the wire passing device 100. The electric control box 200 provided in the embodiment of the present application is provided with the above-mentioned wire passing device 100, so before threading the wire, the wire passing device 100 can better seal the wire passing hole to prevent debris from entering the electric control box 200, thereby ensuring the subsequent installation and use of the electric control box 200.

[0039] The use method and beneficial effects of the wire passing device 100 provided in the embodiment of the present application are as follows:

[0040] First, squeeze the fixing ring 110 of the wire-passing device 100 to make it snap into the inner side of the wire-passing hole, and the inner edge of the wire-passing hole snaps into the card slot 112 on the outer peripheral side of the fixing ring 110, so that the wire-passing device 100 is fixed. Before threading, the sealing structure 130 of the wire-passing device 100 is not torn, and the wire-passing device 100 completely seals the wire-passing hole to prevent debris from entering the electric control box 200 through the wire-passing hole. When threading is required, tear open the sealing structure 130 (it can be done by poking the sealing structure 130 with a hard object), and since the flexible sheet 120 can be lifted up, the cable can pass through the wire-passing device 100. After threading, the flexible sheet 120 has a certain elasticity and is therefore placed on the cable, and can also seal the wire-passing hole together with the cable.

[0041] In summary, the wire-passing device provided in the embodiment of the present application connects multiple flexible sheets by setting a sealing structure to completely seal the inner hole of the fixed ring. This ensures that before threading, the wire-passing device installed in the wire-passing hole can completely close the wire-passing hole to prevent snakes, insects, rats, ants or other debris from entering the housing of the device, thereby ensuring the normal installation and use of the device in the later stage. When threading is required during the installation process, the sealing structure is torn so that the multiple flexible sheets can be deformed to open the inner hole of the fixed ring. At this time, the wire is passed through the inner hole of the fixed ring to complete the threading. The electric control box provided in the embodiment of the present application is provided with the above-mentioned wire-passing device. Therefore, before threading, the wire-passing device can better seal the wire-passing hole to prevent debris from entering the electric control box, thereby ensuring the subsequent installation and use of the electric control box.

[0042] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. A wire passing device, characterized in that: A fixing ring (110) and a plurality of flexible sheets (120) connected to the fixing ring (110), the plurality of flexible sheets (120) being arranged along the circumferential direction on the inner circumference of the fixing ring (110), the plurality of flexible sheets (120) being connected to each other via a tearable sealing structure (130), the sealing structure (130) and the plurality of flexible sheets (120) jointly sealing the inner hole of the fixing ring (110), the sealing structure and the flexible sheets being integrally formed using the same material; The sealing structure (130) comprises a plurality of sealing strips (131), the number of the sealing strips (131) being the same as the number of the flexible sheets (120), the gap between two adjacent flexible sheets (120) being sealed by the sealing strips (131), one end of each of the sealing strips (131) being connected to the inner circumference of the fixing ring (110), and the other end of each of the sealing strips (131) being intersected at the center of the fixing ring (110), each of the sealing strips (131) comprising a first section (132) and a second section (134), the first section (132) being closer to the center of the fixing ring (110) than the second section (134); In the axial direction of the fixing ring (110), the thickness of the first section (132) is smaller than the thickness of the second section (134).

2. The wire passing device according to claim 1, characterized in that: Each of the flexible sheets (120) is fan-shaped, and the arc-shaped edge of the flexible sheet (120) is connected to the inner circumference of the fixing ring (110).

3. The wire passing device according to claim 2, characterized in that: The wire passing device (100) comprises four flexible sheets (120), each of the flexible sheets (120) is in the shape of a right-angled sector, the right-angled sides of the four flexible sheets (120) together form a cross-shaped gap, and the cross-shaped gap is sealed by the sealing structure (130).

4. The wire passing device according to claim 2 or 3, characterized in that: In the axial direction of the fixing ring (110), the thickness of the sealing structure (130) is smaller than the thickness of the flexible sheet (120).

5. The wire passing device according to claim 1, characterized in that: The second section (134) comprises a first section (135) extending along the length direction of the sealing strip (131) and two second sections (136), wherein the two second sections (136) are respectively connected to two sides of the first section (135) and are respectively connected to the two flexible sheets (120); In the axial direction of the fixing ring (110), the thickness of the first section (135) is smaller than the thickness of the second section (136).

6. The wire passing device according to claim 1, characterized in that: An end of the first section (132) away from the center of the fixing ring (110) is provided with a pointed portion (133) protruding along the length direction of the sealing strip (131), and the tip of the pointed portion (133) is connected to the middle position of the second section (134) in the width direction.

7. The wire passing device according to claim 1, characterized in that: The fixing ring (110) is provided with a clamping groove (112) extending around its outer circumference.

8. The wire passing device according to claim 1, characterized in that: The fixing ring (110) is flexible, and a mounting groove (114) is provided on at least one side of the fixing ring (110) in the axial direction.

9. An electric control box, characterized in that: The electric control box (200) is provided with a wire passing hole, and a wire passing device (100) according to any one of claims 1 to 8 is provided at the wire passing hole, and the outer peripheral side of the fixing ring (110) of the wire passing device (100) is connected to the inner side of the wire passing hole.

Images