Cable connecting device

Abstract

The utility model relates to the technical field of high-voltage electric appliances, and provides a cable connecting device which comprises a fixing assembly and a sealing assembly, the fixing assembly comprises a base and a fixing part, the fixing part is fixedly connected with the base, at least one of the base and the fixing part is provided with a limiting groove, and the sealing assembly is arranged in the limiting groove. The first cable and the second cable are oppositely arranged at the two ends of the limiting groove and are connected in the limiting groove; the sealing assembly wraps the outer side of the fixing assembly, and the sealing assembly is used for sealing the fixing assembly. The cable connecting device provided by the utility model is used for solving the defects of cable connection in the prior art, the joint of the first cable and the second cable is arranged through the limiting groove, and the sealing assembly is used for sealing, so that the limitation of the cable diameter on the type selection of high-voltage components can be broken, and the tensile strength of the joint of the first cable and the second cable is improved; the waterproof performance of the joint is improved, and the risk of insulation faults is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage electrical appliances, in particular to a cable connecting device. Background Art

[0002] In the process of selecting high-voltage electrical appliances, high-voltage cables often need to be segmented and connected. Since high-voltage cables transmit high voltage electricity, they are different from low-voltage wires. It is not appropriate to connect two sections of cables with different wire diameters with simple connection terminals, otherwise it is easy to cause safety problems. It is necessary to design a special connection device and adopt a suitable sealing process to ensure the safety of high-voltage cable connection. At present, the connection method of two sections of high-voltage cables with different wire diameters is to use screws to fix the cable core wire in the copper casing. This method is easy to damage the core wire, and the cable has poor pull-off resistance and poor waterproof performance, which is easy to cause insulation failure. Utility Model Content

[0003] The utility model provides a cable connection device to solve the defects of cable connection in the prior art. The connection between the first cable and the second cable is arranged by a limiting groove and sealed by a sealing component. The limitation of the cable wire diameter on the selection of high-voltage components can be broken, the tensile strength of the connection between the first cable and the second cable is improved, the waterproof performance of the connection is increased, and the risk of insulation failure is reduced.

[0004] The utility model provides a cable connecting device, comprising:

[0005] A fixing assembly, comprising a base and a fixing component, wherein the fixing component is fixedly connected to the base, at least one of the base and the fixing component is provided with a limiting groove, and a first cable and a second cable are arranged at two ends of the limiting groove opposite to each other and connected in the limiting groove;

[0006] A sealing component is wrapped around the outside of the fixing component, and the sealing component is used to seal the fixing component.

[0007] According to the cable connection device provided by the utility model, the base includes an upper base and a lower base connected to each other, at least one of the upper base and the lower base is provided with a limiting groove, the upper base and the fixing component are arranged on the same side of the connection between the first cable and the second cable, the lower base is arranged on the other side of the connection between the first cable and the second cable, and the fixing component is fixedly connected to the lower base.

[0008] According to the cable connection device provided by the utility model, the side of the lower base body facing the upper base body has a first limiting portion, a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are symmetrically arranged on both sides of the first limiting portion, the first limiting portion is used to limit the limiting groove, one side of the upper base body is fixed to the first connecting portion, and the other side is fixed to the second connecting portion; one side of the fixing component is fixed to the first connecting portion, and the other side is fixed to the second connecting portion.

[0009] According to the cable connection device provided by the utility model, the first limiting portion includes a limiting arc surface, which abuts against the connection between the first cable and the second cable, and is used to limit the radial movement of either the first cable or the second cable.

[0010] According to the cable connection device provided by the utility model, the lower base extends along the length direction of the first cable, and the limiting groove is provided on the lower base and extends synchronously with the lower base.

[0011] According to the cable connection device provided by the utility model, the side of the upper base body facing the lower base body has a second limiting portion, a third connecting portion and a fourth connecting portion, the third connecting portion and the fourth connecting portion are symmetrically arranged on both sides of the second limiting portion, the second limiting portion is used to limit the limiting groove, one side of the lower base body is fixed to the third connecting portion, and the other side is fixed to the fourth connecting portion.

[0012] According to the cable connecting device provided by the utility model, the fixing component includes a first fixing member, a second fixing member, a third fixing member and a fourth fixing member, the first fixing member is located on one side of the upper substrate and the second fixing member is located on one side of the upper substrate, the first fixing member is used to fix the coating of the first cable, and the second fixing member is used to fix the battery core of the first cable; the third fixing member and the fourth fixing member are located on the other side of the upper substrate, the third fixing member is used to fix the battery core of the second cable, and the fourth fixing member is used to fix the coating of the second cable.

[0013] According to the cable connecting device provided by the utility model, the base includes an oxygen-free copper body.

[0014] According to the cable connection device provided by the utility model, the sealing component includes a sealing member and an insulating tape, the sealing member is wrapped around the outside of the fixing component, and the insulating tape is wrapped around the outside of the sealing member.

[0015] According to the cable connection device provided by the utility model, the sealing component includes an epoxy resin body.

[0016] The cable connection device provided by the utility model is provided with a limiting groove on at least one of the base and the fixing component. In this way, when the first cable and the second cable are installed in the limiting groove, the contact area between the first cable and the second cable and the base and the fixing component can be made larger. Under the clamping of the base and the fixing component, the first cable and the second cable can be fixed more securely without causing any damage to the first cable or the second cable. In addition, under this setting, the wire diameter of the first cable and the second cable can be freely selected, so that the selection of high-voltage components is not limited to the cable wire diameter, which can be more flexible and is conducive to speeding up the overall development progress of the device and reducing development costs. In addition, the fixed component is sealed by a seal, so that the safety and waterproofness of the connection between the first cable and the second cable can be improved. In addition, the air is isolated by the sealing component, and the oxidation of the fixed component and the connection between the first cable and the second cable can be slowed down, thereby improving the service life of the fixed component, the first cable and the second cable.

[0017] Compared with the prior art, the cable connecting device provided by the utility model arranges the connection between the first cable and the second cable by means of a limiting groove, and fixes the first cable and the second cable by means of a fixing component and a base, so that, on the one hand, the battery core of the cable will not be damaged due to the fixing of the screws, and the connection effect will not be affected regardless of whether the cable has a small wire diameter or a large wire diameter, thus breaking the limitation of the cable wire diameter on the selection of high-voltage components, and on the other hand, the sheath of the cable is also fixed, which can greatly improve the tensile strength of the connection between the first cable and the second cable; in addition, since the first cable and the second cable are connected in the limiting groove, the connection can be well protected by the fixing component and the sealing component, which not only greatly improves the safety of the connection between the first cable and the second cable, but also increases the waterproof performance of the connection, reducing the risk of insulation failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the cable connection device provided in an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the fixing assembly provided in an embodiment of the utility model.

[0021] Figure 3It is a structural schematic diagram of a base provided in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 10: first cable; 20: second cable; 100: fixing assembly; 110: base; 111: upper base; 112: lower base; 1121: first limiting portion; 1122: first connecting portion; 1123: second connecting portion; 120: fixing component; 121: first fixing member; 122: second fixing member; 123: third fixing member; 124: fourth fixing member; 200: sealing assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0028] Figure 1 It is a schematic diagram of the overall structure of the cable connection device provided by the embodiment of the utility model; Figure 2 It is a schematic diagram of the overall structure of the fixing assembly provided in an embodiment of the utility model.

[0029] See also Figure 1 and Figure 2 The embodiment of the utility model provides a cable connection device. For the convenience of understanding in the following text, the two butted cables are named as the first cable 10 and the second cable 20. The naming is only for schematic expression and is not a specific limitation of the embodiment of the utility model. The cable connection device includes a fixing assembly 100 and a sealing assembly 200, wherein the fixing assembly 100 includes a base 110 and a fixing component 120, and the fixing component 120 is fixedly connected to the base 110. The fixing connection method can be fastened by fasteners such as screws or bolts, can be mutually clamped by buckles and slots, can be bonded by adhesives, or can be welded. There are many ways of fixing the connection, which will not be listed one by one in this article. Specifically, it can be adaptively selected according to actual conditions.

[0030] At least one of the base 110 and the fixing component 120 is provided with a limiting groove. In other words, the limiting groove can be provided only on the base 110, or only on the fixing component 120, or both the base 110 and the fixing component 120 are provided with limiting grooves. It should be noted that when limiting grooves are provided on both the base 110 and the fixing component 120, the limiting groove on the fixing component 120 needs to match the limiting groove on the base 110 to ensure the fit during use.

[0031] The first cable 10 and the second cable 20 are relatively arranged at the two ends of the limiting groove and are connected in the limiting groove. Specifically, when in use, the first cable 10 and the second cable 20 can be respectively inserted from the openings at both ends of the limiting groove, and the ends of the first cable 10 and the second cable 20 are connected in the groove. The connection can be abutment or knotting, which can be adaptively adjusted according to actual conditions.

[0032] The sealing component 200 is wrapped around the outside of the fixing component 100. The sealing component 200 is used to seal the connection between the first cable 10 and the second cable 20 and the fixing component 100. The sealing component 200 can be made in an integrated manner, such as injection molding. Taking epoxy resin as an example, after the fixing component 100 is installed, the mold is set on the outside of the fixing component 100, and the epoxy resin is injected into the mold cavity of the mold from the injection port. After the epoxy resin is cured, the mold is removed and the gate is cut off to complete the production of the sealing component 200.

[0033] See also Figure 1 and Figure 2 It can be understood that the cable connection device provided by the embodiment of the utility model is provided with a limiting groove on at least one of the base 110 and the fixing component 120. In this way, when the first cable 10 and the second cable 20 are installed in the limiting groove, the contact area between the first cable 10 and the second cable 20 and the base 110 and the fixing component 120 can be made larger. Under the clamping of the base 110 and the fixing component 120, the first cable 10 and the second cable 20 can be fixed more firmly, and no damage will be caused to the first cable 10 or the second cable 20. In addition, under this setting, the wire diameter of the first cable 10 and the second cable 20 can be freely selected, so that the selection of high-voltage components is not limited to the cable wire diameter, so that it can be more flexible, which is conducive to accelerating the overall development progress of the device and reducing the development cost. In addition, the fixing component 100 is sealed by a seal, so that the safety and waterproofness of the connection between the first cable 10 and the second cable 20 can be improved. In addition, the air is isolated by the sealing component 200, which can also slow down the oxidation of the fixing component 100 and the connection between the first cable 10 and the second cable 20, thereby improving the service life of the fixing component 100, the first cable 10 and the second cable 20.

[0034] Compared with the prior art, the cable connection device provided by the embodiment of the utility model arranges the connection between the first cable 10 and the second cable 20 through a limiting groove, and fixes the first cable 10 and the second cable 20 through a fixing component 120 and a base 110. In this way, on the one hand, the battery core of the cable will not be damaged by the screw fixation, and the connection effect will not be affected regardless of whether the cable has a small wire diameter or a large wire diameter, that is, the limitation of the cable wire diameter on the selection of high-voltage components is broken. On the other hand, the sheath of the cable is also fixed, which can greatly improve the tensile strength of the connection between the first cable 10 and the second cable 20; in addition, since the first cable 10 and the second cable 20 are connected in the limiting groove, the connection can be well protected by the fixing component 100 and the sealing component 200, which not only greatly improves the safety of the connection between the first cable 10 and the second cable 20, but also increases the waterproof performance of the connection, reducing the risk of insulation failure.

[0035] Figure 3 It is a structural schematic diagram of a base provided in an embodiment of the utility model.

[0036] See also Figure 2 and Figure 3 In an optional embodiment of the utility model, the base 110 includes an upper base 111 and a lower base 112 connected to each other, at least one of the upper base 111 and the lower base 112 is provided with a limiting groove, the upper base 111 and the fixing component 120 are arranged on the same side of the connection between the first cable 10 and the second cable 20, and the lower base 112 is arranged on the other side of the connection between the first cable 10 and the second cable 20. From another perspective, the upper base 111 and the fixing component 120 are arranged on a side of the lower base 112 facing the connection between the first cable 10 and the second cable 20, and the fixing component 120 is fixedly connected to the lower base 112. The method of fixed connection is described above.

[0037] It should be noted that the upper base 111 and the lower base 112 are independent parts, which are fixedly connected. The fixed connection method is described above. It can be understood that such a configuration can facilitate the processing and transportation of the base 110, and is also conducive to maintenance and replacement. It also facilitates the connection between the first cable 10 and the second cable 20. In other optional embodiments of the utility model, the upper base 111 and the lower base 112 can also be an integrated component. Specifically, the base 110 can be manufactured in an integrated molding manner, such as casting or machine tool processing. It can be understood that such a configuration can reduce the parts required for assembling the cable connection device, reduce the assembly steps, and reduce the difficulty of assembly.

[0038] See also Figure 2It can be understood that the cable connection device provided by the embodiment of the utility model can further increase the contact area between the base 110 and the first cable 10 and the second cable 20 by providing the upper base 111 and the lower base 112 connected to each other, which is beneficial to protecting the connection between the first cable 10 and the second cable 20; furthermore, the sealing component 200 has a larger contact area with the base 110 after molding, which can improve the sealing performance of the sealing component 200, that is, improve the waterproofness of the connection between the first cable 10 and the second cable 20.

[0039] Continue reading Figure 2 and Figure 3 As shown, in an optional embodiment of the utility model, one side of the lower base 112 facing the upper base 111 has a first limiting portion 1121, a first connecting portion 1122 and a second connecting portion 1123, the first connecting portion 1122 and the second connecting portion 1123 are symmetrically arranged on both sides of the first limiting portion 1121, the first limiting portion 1121 is sunken along the surface of the lower base 112 to limit a limiting groove, one side of the upper base 111 is fixed to the first connecting portion 1122, and the other side is fixed to the second connecting portion 1123, similarly, one side of the fixing component 120 is also fixed to the first connecting portion 1122, and the other side is fixed to the second connecting portion 1123, the first connecting portion 1122 and the second connecting portion 1123 can be set as the fitting surface of the lower base 112 facing the upper base 111, which is beneficial to the fitting and fixation of the upper base 111 and the fixing component 120 with the lower base 112, and furthermore, such a structure is easy to process and can reduce the processing cost.

[0040] Continue reading Figure 1 In an optional embodiment of the utility model, the first limiting portion 1121 includes a limiting arc surface, which abuts against the connection between the first cable 10 and the second cable 20. The limiting arc surface is used to limit the radial movement of any one of the first cable 10 and the second cable 20. It can be understood that the first cable 10 and the second cable 20 are cylindrical structures, and the connection between them is also approximately cylindrical. By setting the limiting arc surface, the first limiting portion 1121 can be better fitted with the connection between the first cable 10 and the second cable 20, and the stability of the connection between the first cable 10 and the second cable 20 can be improved.

[0041] Continue reading Figure 2 In an optional embodiment of the utility model, the lower base 112 extends along the length direction of the first cable 10, and the limiting groove is provided on the lower base 112 and extends synchronously with the lower base 112. It can be understood that such a configuration is beneficial to the coaxiality of the first cable 10 and the second cable 20 after being connected, that is, the first cable 10 and the second cable 20 can be made closer to a complete cable after being connected, which is beneficial to the subsequent use and arrangement of the cables.

[0042] Continue reading Figure 2 In an optional embodiment of the utility model, a side of the upper substrate 111 facing the lower substrate 112 has a second limiting portion, a third connecting portion and a fourth connecting portion, the third connecting portion and the fourth connecting portion are symmetrically arranged on both sides of the second limiting portion, the second limiting portion is sunken along the surface of the upper substrate 111 to limit a limiting groove, one side of the lower substrate 112 is fixed to the third connecting portion, and the other side is fixed to the fourth connecting portion, the third connecting portion and the fourth connecting portion can be set as the fitting surface of the upper substrate 111 facing the lower substrate 112, which is conducive to the fitting and fixing of the lower substrate 112 and the upper substrate 111, and furthermore, such a structure is easy to process and can reduce the processing cost.

[0043] Continue reading Figure 2 In an optional embodiment of the utility model, the fixing component 120 includes a first fixing member 121, a second fixing member 122, a third fixing member 123 and a fourth fixing member 124. The first fixing member 121 and the second fixing member 122 are located on one side of the upper substrate 111. The first fixing member 121 is used to fix the coating of the first cable 10, and the second fixing member 122 is used to fix the battery core of the first cable 10. The third fixing member 123 and the fourth fixing member 124 are located on the other side of the upper substrate 111. The third fixing member 123 is used to fix the battery core of the second cable 20, and the fourth fixing member 124 is used to fix the coating of the second cable 20.

[0044] Taking the first fixing member 121 as an example, the first fixing member 121 includes a limiting portion and a connecting portion, the connecting portion is symmetrically arranged on both sides of the limiting portion, the limiting portion is sunken to form a limiting groove, and the connecting portion is used for fixing the first fixing member 121 and the lower base 112. The structures of the second fixing member 122, the third fixing member 123 and the fourth fixing member 124 are similar to them, see Figure 2 It can be understood that by setting the first fixing member 121, the second fixing member 122, the third fixing member 123 and the fourth fixing member 124, the coating and the battery core of the first cable 10 and the coating and the battery core of the second cable 20 can be fixed respectively. On the one hand, the stability of the fixed connection can be improved, and on the other hand, the assembly connection of the first cable 10 and the second cable 20 can be facilitated to save assembly time.

[0045] In addition, the first fixing member 121, the second fixing member 122, the third fixing member 123, the fourth fixing member 124 and the base 110 have a simple structure and can be easily designed in series according to the size range of the cables to be crimped. In this way, through matching and selection, the cable connecting device can be suitable for connection between cables of various specifications, which is conducive to the promotion and use of the cable connecting device.

[0046] In an optional embodiment of the utility model, the base 110 includes an oxygen-free copper body. In other words, the base 110 is made of oxygen-free copper material. It can be understood that oxygen-free copper has a higher electrical conductivity, which is beneficial to the conduction of the circuit after the first cable 10 and the second cable 20 are connected. In addition, oxygen-free copper has good thermal conductivity, which can diffuse the heat at the connection between the first cable 10 and the second cable 20 to avoid heat accumulation; furthermore, oxygen-free copper has good weldability, excellent plasticity and ductility, excellent cold working performance and is non-magnetic. These characteristics are beneficial to the processing of the base 110, which can greatly reduce the processing cycle and reduce the processing cost of the base 110.

[0047] In an optional embodiment of the utility model, the sealing component 200 includes a sealing member and an insulating tape, the sealing member is wrapped around the outside of the fixing component 100, and the insulating tape is wrapped around the outside of the sealing member. The sealing member can be made in an integrated molding manner, such as injection molding. Taking epoxy resin as an example, after the fixing component 100 is installed, the mold is set on the outside of the fixing component 100, and the epoxy resin is injected into the injection mold cavity of the mold from the injection port. After the epoxy resin is cured, the mold is removed, the gate is cut off, and the production of the sealing member is completed. The double sealing of the sealing member and the insulating tape can further enhance the sealing and waterproof properties of the connection between the first cable 10 and the second cable 20, and can improve the safety and stability of the device during use.

[0048] Taking the high-voltage box to the all-in-one high-voltage cable as an example, the first cable 10 uses a high-voltage box terminal connector with a wire diameter of 50 square meters, and the second cable 20 uses an all-in-one terminal connector with a wire diameter of 35 square meters. When actually connecting, first cut a section of the first cable 10 and the second cable 20 respectively, and then peel off the appropriate length of the coating at the position where the first cable 10 and the second cable 20 are to be connected using the cable connecting device, exposing the internal cores of the first cable 10 and the second cable 20, and then use the cable connecting device to connect; after the first cable 10 and the second cable 20 are connected, put on the injection mold, and then inject epoxy resin. After the epoxy resin solidifies, a seal is formed, and finally the pouring port is cut off and the insulating tape is used for coating.

[0049] It should be noted that the technical solutions in various embodiments of the present utility model can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in the field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist, that is, it does not belong to the protection scope of the present utility model.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A cable connection device, characterized in that: include: A fixing assembly (100) comprises a base (110) and a fixing component (120), wherein the fixing component (120) is fixedly connected to the base (110), at least one of the base (110) and the fixing component (120) is provided with a limiting groove, and a first cable (10) and a second cable (20) are arranged at two ends of the limiting groove relative to each other and are connected in the limiting groove; A sealing component (200) is wrapped around the outside of the fixing component (100), and the sealing component (200) is used to seal the fixing component (100).

2. The cable connection device according to claim 1, characterized in that: The base (110) comprises an upper base (111) and a lower base (112) which are connected to each other, at least one of the upper base (111) and the lower base (112) being provided with a limiting groove, the upper base (111) and the fixing component (120) being arranged on the same side of a connection point between the first cable (10) and the second cable (20), the lower base (112) being arranged on the other side of a connection point between the first cable (10) and the second cable (20), and the fixing component (120) being fixedly connected to the lower base (112).

3. The cable connection device according to claim 2, characterized in that: The lower base (112) has a first limiting portion (1121), a first connecting portion (1122) and a second connecting portion (1123) on one side facing the upper base (111); the first connecting portion (1122) and the second connecting portion (1123) are symmetrically arranged on both sides of the first limiting portion (1121); the first limiting portion (1121) is used to limit the limiting groove; one side of the upper base (111) is fixed to the first connecting portion (1122), and the other side is fixed to the second connecting portion (1123); one side of the fixing component (120) is fixed to the first connecting portion (1122), and the other side is fixed to the second connecting portion (1123).

4. The cable connection device according to claim 3, characterized in that: The first limiting portion (1121) comprises a limiting arc surface, the limiting arc surface abuts against a connection between the first cable (10) and the second cable (20), and the limiting arc surface is used to limit radial movement of either the first cable (10) or the second cable (20).

5. The cable connection device according to any one of claims 2 to 4, characterized in that: The lower base (112) extends along the length direction of the first cable (10), and the limiting groove is provided on the lower base (112) and extends synchronously with the lower base (112).

6. The cable connection device according to any one of claims 2 to 4, characterized in that: The upper base (111) has a second limiting portion, a third connecting portion and a fourth connecting portion on one side facing the lower base (112); the third connecting portion and the fourth connecting portion are symmetrically arranged on both sides of the second limiting portion; the second limiting portion is used to limit the limiting groove; one side of the lower base (112) is fixed to the third connecting portion, and the other side is fixed to the fourth connecting portion.

7. The cable connection device according to any one of claims 2 to 4, characterized in that: The fixing component (120) comprises a first fixing member (121), a second fixing member (122), a third fixing member (123) and a fourth fixing member (124); the first fixing member (121) is located on one side of the upper substrate (111), and the second fixing member (122) is located on one side of the upper substrate (111); the first fixing member (121) is used to fix the coating layer of the first cable (10), and the second fixing member (122) is used to fix the battery core of the first cable (10); the third fixing member (123) and the fourth fixing member (124) are located on the other side of the upper substrate (111); the third fixing member (123) is used to fix the battery core of the second cable (20), and the fourth fixing member (124) is used to fix the coating layer of the second cable (20).

8. The cable connection device according to claim 1, characterized in that: The base (110) comprises an oxygen-free copper body.

9. The cable connection device according to any one of claims 1 to 4, characterized in that: The sealing component (200) comprises a sealing member and an insulating tape, wherein the sealing member is wrapped around the outside of the fixing component (100), and the insulating tape is wrapped around the outside of the sealing member.

10. The cable connection device according to claim 9, characterized in that: The seal includes an epoxy resin body.

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