A modular disconnect unit and contactor with a support guide assembly
By using a bracket guide assembly made of thermoplastic material in the modular breaking unit, combined with the self-lubricating function of the thermosetting plastic material, the pollution and motion performance problems caused by friction between the moving contact bracket and the shell in the prior art are solved, and lower friction and more stable moving contact movement are achieved.
Patent Information
- Application Number
- CN202010686206.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-07-16
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2040-07-16
AI Technical Summary
The moving contact bracket and housing in the existing breaking unit friction due to relative movement, resulting in the generation of contaminated particles, hindering the motion performance of the moving contacts, and may cause the silver point dislocation between the static contacts and the moving contacts.
A modular breaking unit is designed, which includes a bracket guide assembly made of thermoplastic material, and cooperates with the unit housing to support and guide the movement of the moving contact bracket, and uses the friction between the thermosetting plastic material and the thermoplastic material to exert the self-lubricating function of the thermoplastic material.
It significantly reduces the friction between the moving contact bracket and the guide, reduces the generation of contaminated particles, improves the movement performance of the moving contacts, and avoids the risk of silver point misalignment caused by long-term friction.
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Figure CN113948324B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a modular disconnecting unit having a bracket guiding assembly. The present disclosure also relates to a contactor including at least one of the modular disconnecting units. Background Art
[0002] In the prior art, the housing of the disconnecting unit and the moving contact bracket accommodated therein are both made of thermosetting materials. Friction is generated due to relative movement between them, and thus contaminating particles will be generated. The generation of contaminating particles further exacerbates the friction between the two, which hinders the movement performance of the moving contact and long-term friction will cause misalignment (gap) of the silver points between the moving contact and the static contact. In order to obtain good friction between them, good shape and material guiding must be formed between them. Summary of the Invention
[0003] To solve one or more deficiencies in the prior art, according to one aspect of the present disclosure, a modular disconnecting unit having a bracket guiding assembly is provided, wherein the modular disconnecting unit includes a unit housing.
[0004] The moving contact bracket of the modular disconnecting unit is accommodated in the unit housing.
[0005] The moving contact of the modular disconnecting unit is mounted on the moving contact bracket.
[0006] The bracket guiding assembly is mounted in the unit housing and is configured to support and guide the movement of the moving contact bracket between an open position and a closed position.
[0007] The bracket guiding assembly is made of a thermoplastic material.
[0008] The moving contact bracket is made of a thermosetting material.
[0009] According to the above aspect of the present disclosure, the bracket guiding assembly includes a first guiding member and a second guiding member.
[0010] The first guiding member is disposed inside the unit housing and supports one end of the moving contact bracket.
[0011] The second guiding member is disposed at the housing opening of the unit housing and supports the other end of the moving contact bracket.
[0012] According to the above aspects of the present disclosure, the first guiding member has a first guiding through hole.
[0013] The second guiding member has a second guiding through hole.
[0014] The moving contact support passes through the first guiding through hole and the second guiding through hole.
[0015] When the moving contact support reciprocates between the open position and the closed position, the outer peripheral surface of the moving contact support is in frictional contact with the first inner peripheral surface of the first guiding through hole and the second inner peripheral surface of the second guiding through hole respectively.
[0016] According to the above aspects of the present disclosure, a moving contact holding through hole is provided on the moving contact support.
[0017] A holding spring is received in the moving contact holding through hole.
[0018] One end of the holding spring abuts against the inner surface of the moving contact holding through hole.
[0019] The other end of the holding spring elastically presses the moving contact against the inner surface of the moving contact holding through hole.
[0020] Since the friction between the moving contact support and the first guiding member and the second guiding member respectively is the friction of a thermosetting plastic material against a thermoplastic plastic material, the self-lubricating function of the thermoplastic plastic material can be fully exerted, thereby significantly reducing the friction between the moving contact support and the first guiding member and the second guiding member, and further significantly reducing the generation of contamination particles.
[0021] According to the above structure of the present disclosure, the movement performance of the moving contact is greatly improved and the risk of silver point misalignment (gap) between the moving contact and the stationary contact caused by long-term friction is avoided.
[0022] According to the above aspects of the present disclosure, a first guiding member reinforcing rib is provided on the outer peripheral surface of the first guiding member.
[0023] According to the above aspects of the present disclosure, a second guiding member mating groove is provided on the outer peripheral surface of the second guiding member.
[0024] The opening edge of the housing opening is fitted in the second guiding member mating groove.
[0025] According to the above aspects of the present disclosure, the first guiding member is an integrally formed single component.
[0026] The second guiding member is an integrally formed single component.
[0027] The moving contact support is first assembled with the first guiding member and the second guiding member, and then assembled in the unit housing.
[0028] According to the above aspects of the present disclosure, the first guiding member includes a first upper guiding member and a first lower guiding member formed separately.
[0029] The second guiding member includes a second upper guiding member and a second lower guiding member formed separately.
[0030] When the first upper guiding member and the first lower guiding member are assembled together, the first guiding through hole is formed.
[0031] When the second upper guiding member and the second lower guiding member are assembled together, the first guiding through hole is formed.
[0032] According to the above aspects of the present disclosure, the unit housing includes an upper housing and a lower housing that can be fitted together.
[0033] The first upper guiding member and the second upper guiding member are integrally formed with the upper housing.
[0034] The first lower guiding member and the second lower guiding member are integrally formed with the lower housing.
[0035] Whether the first guiding member and the second guiding member are integrally formed or formed separately, the solution according to the present disclosure can greatly simplify the complexity and cost of industrial assembly.
[0036] According to another aspect of the present disclosure, a contactor is provided, wherein the contactor includes at least one modular breaking unit as described above.
[0037] So far, for a better understanding of the detailed description of the present disclosure herein, and for a better recognition of the contribution of the present disclosure to the prior art, the present disclosure has been outlined quite extensively.
[0038] Similarly, those skilled in the art will recognize that the concept on which the present disclosure is based can be easily used as a basis for designing other structures, methods, and systems for implementing several purposes of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Those skilled in the art will have a better understanding of the present disclosure through the following drawings, and the advantages of the present disclosure will be more clearly demonstrated. The drawings described here are only for illustrative purposes of the selected embodiments and are not all possible embodiments and are not intended to limit the scope of the present disclosure.
[0040] Figure 1 Shows the internal structure of the modular breaking unit according to the present disclosure;
[0041] Figure 2Shows a first integrally formed guide member according to the present disclosure;
[0042] Figure 3 Shows a second integrally formed guide member according to the present disclosure;
[0043] Figure 4 Shows a first split - formed guide member according to the present disclosure;
[0044] Figure 5 Shows a second split - formed guide member according to the present disclosure. Detailed Description
[0045] The following specifically describes the specific embodiments according to the present disclosure in conjunction with each drawing.
[0046] According to an embodiment of the present disclosure, as Figure 1 shown, a modular disconnecting unit 1 with a support guide assembly 2 is proposed, wherein the modular disconnecting unit 1 includes a unit housing 3.
[0047] For the purpose of clarity, Figure 1 the static contact 7 is shown and only the lower housing of the unit housing 3 is shown.
[0048] The moving contact support 4 of the modular disconnecting unit 1 is accommodated in the unit housing 3.
[0049] The moving contact 5 of the modular disconnecting unit 1 is mounted on the moving contact support 4.
[0050] The support guide assembly 2 is mounted in the unit housing 3 and is configured to support and guide the movement of the moving contact support 4 between an open position and a closed position. Driven by the moving contact support 4, the moving contact 5 mounted thereon separates from or contacts the static contact 7.
[0051] The support guide assembly 2 is made of a thermoplastic material.
[0052] The moving contact support 4 is made of a thermosetting plastic material.
[0053] The materials of the support guide assembly 2 and the moving contact support 4 are selected such that they can withstand a temperature of at least 260 degrees Celsius.
[0054] According to the above - mentioned embodiment of the present disclosure, the support guide assembly 2 includes a first guide member 2 - 1 and a second guide member 2 - 2.
[0055] The first guide member 2 - 1 is disposed inside the unit housing 3 and supports one end of the moving contact support 4.
[0056] The second guiding member 2-2 is disposed at the housing opening 3-1 of the unit housing 3 and supports the other end of the moving contact bracket 4. As Figure 1 shown, a part of the moving contact bracket 4 extends out of the housing opening 3-1.
[0057] According to the above respective embodiments of the present disclosure, as Figure 2 and Figure 3 shown, the first guiding member 2-1 has a first guiding through hole 2-1-1. The second guiding member 2-2 has a second guiding through hole 2-2-1.
[0058] The moving contact bracket 4 passes through the first guiding through hole 2-1-1 and the second guiding through hole 2-2-1.
[0059] When the moving contact bracket 4 reciprocates between the open position and the closed position, the outer peripheral surface of the moving contact bracket 4 is in frictional contact with the first inner peripheral surface 2-1-1-1 of the first guiding through hole 2-1-1 and the second inner peripheral surface 2-2-1-1 of the second guiding through hole 2-2-1 respectively.
[0060] According to the above respective embodiments of the present disclosure, a moving contact holding through hole 4-1 is provided on the moving contact bracket 4.
[0061] A holding spring 6 is accommodated in the moving contact holding through hole 4-1.
[0062] One end of the holding spring 6 abuts against the inner surface 4-1-1 of the moving contact holding through hole 4-1.
[0063] The other end of the holding spring 6 elastically presses the moving contact 5 against the inner surface 4-1-1 of the moving contact holding through hole 4-1.
[0064] Since the friction between the moving contact bracket 4 and the first guiding member 2-1 and the second guiding member 2-2 respectively is the friction between a thermosetting plastic material and a thermoplastic plastic material, the self-lubricating function of the thermoplastic plastic material can be fully exerted, thereby significantly reducing the friction between the moving contact bracket 4 and the first guiding member 2-1 and the second guiding member 2-2, and further significantly reducing the generation of pollution particles.
[0065] According to the above structure of the present disclosure, the movement performance of the moving contact is greatly improved and the risk of silver point misalignment (gap) between the moving contact and the static contact caused by long-term friction is avoided.
[0066] According to the above respective embodiments of the present disclosure, as Figure 2As shown, a first guide member reinforcing rib 2-1-2 is provided on the outer peripheral surface of the first guide member 2-1, thereby enhancing the mechanical strength and durability of the first guide member.
[0067] According to the various embodiments of the present disclosure, a second guide member mating groove 2-2-2 is provided on the outer peripheral surface of the second guide member 2-2.
[0068] As Figure 1 shown, the opening edge of the housing opening 3-1 is fitted in the second guide member mating groove 2-2-2.
[0069] According to the various embodiments of the present disclosure, as Figure 2 and Figure 3 shown, the first guide member 2-1 is a single integrally formed component. The second guide member 2-2 is a single integrally formed component.
[0070] The moving contact bracket 4 is first assembled together with the first guide member 2-1 and the second guide member 2-2, and then assembled in the unit housing 3.
[0071] According to the various embodiments of the present disclosure, as Figure 4 and Figure 5 shown, the first guide member 2-1 includes a first upper guide member 2-1-3 and a first lower guide member 2-1-4 formed separately.
[0072] The second guide member 2-2 includes a second upper guide member 2-2-3 and a second lower guide member 2-2-4 formed separately.
[0073] When the first upper guide member 2-1-3 and the first lower guide member 2-1-4 are assembled together, the first guide through hole 2-1-1 is formed.
[0074] When the second upper guide member 2-2-3 and the second lower guide member 2-2-4 are assembled together, the first guide through hole 2-2-1 is formed.
[0075] According to the various embodiments of the present disclosure, the unit housing 3 includes an upper housing (not shown) and a lower housing (as Figure 1 shown) that can be fitted together.
[0076] The first upper guide member 2-1-3 and the second upper guide member 2-2-3 are integrally formed with the upper housing.
[0077] The first lower guide member 2-1-4 and the second lower guide member 2-2-4 are integrally formed with the lower housing.
[0078] Whether the first guiding member and the second guiding member are integrally formed or separately formed, the solution according to the present disclosure can greatly simplify the complexity and cost of industrial assembly.
[0079] According to another embodiment of the present disclosure, a contactor (not shown) is provided, wherein the contactor includes at least one modular breaking unit 1 as described above.
[0080] Referring to the specific embodiments, although the present disclosure has been described in the specification and the drawings, it should be understood that various changes can be made by those skilled in the art and many equivalents can replace many elements thereof without departing from the scope of the present disclosure defined in the claims. Moreover, the combinations and collocations of the technical features, elements, and / or functions among the specific embodiments herein are clear and distinct. Therefore, according to the disclosed content, those skilled in the art can appreciate that the technical features, elements, and / or functions in the embodiments can be combined into another specific embodiment as appropriate, unless otherwise described above. In addition, according to the teachings of the present disclosure, many changes can be made to adapt to special situations or materials without departing from the essence of the present disclosure. Therefore, the present disclosure is not limited to the individual specific embodiments illustrated in the drawings and the specific embodiments described in the specification as the best mode currently contemplated for implementing the present disclosure, and the present disclosure is intended to include all embodiments falling within the scope of the above specification and the appended claims.
Claims
1. A modular disconnection unit with a bracket guiding assembly, wherein the modular disconnection unit includes a unit housing; a moving contact bracket of the modular disconnection unit is accommodated in the unit housing; a moving contact of the modular disconnection unit is mounted on the moving contact bracket; the bracket guiding assembly is mounted in the unit housing and is configured to support and guide the movement of the moving contact bracket between an open position and a closed position; the bracket guiding assembly is made of a thermoplastic material; the moving contact bracket is made of a thermosetting plastic material; the bracket guiding assembly includes a first guiding member and a second guiding member; the first guiding member is disposed inside the unit housing and supports one end of the moving contact bracket; the second guiding member is disposed at an opening of the unit housing and supports the other end of the moving contact bracket; the first guiding member has a first guiding through hole; the second guiding member has a second guiding through hole; the moving contact bracket passes through the first guiding through hole and the second guiding through hole; when the moving contact bracket reciprocates between the open position and the closed position, an outer peripheral surface of the moving contact bracket is in frictional contact with a first inner peripheral surface of the first guiding through hole and a second inner peripheral surface of the second guiding through hole respectively; the first guiding member includes a first upper guiding member and a first lower guiding member formed separately; the second guiding member includes a second upper guiding member and a second lower guiding member formed separately; when the first upper guiding member and the first lower guiding member are assembled together, the first guiding through hole is formed; when the second upper guiding member and the second lower guiding member are assembled together, the second guiding through hole is formed.
2. The modular disconnection unit according to claim 1, wherein a moving contact holding through hole is provided on the moving contact bracket; a holding spring is accommodated in the moving contact holding through hole; one end of the holding spring abuts against an inner surface of the moving contact holding through hole; the other end of the holding spring elastically presses the moving contact against the inner surface of the moving contact holding through hole.
3. The modular disconnection unit according to claim 1, wherein a first guiding member reinforcing rib is provided on an outer peripheral surface of the first guiding member.
4. The modular disconnection unit according to claim 3, wherein a second guiding member fitting groove is provided on an outer peripheral surface of the second guiding member; an opening edge of the housing opening is fitted in the second guiding member fitting groove.
5. The modular disconnection unit according to claim 1, wherein the first guiding member is an integrally formed single component; the second guiding member is an integrally formed single component; the moving contact bracket is first assembled with the first guiding member and the second guiding member, and then assembled in the unit housing.
6. The modular disconnection unit according to claim 1, wherein the unit housing includes an upper housing and a lower housing that can be fitted together; the first upper guiding member and the second upper guiding member are integrally formed with the upper housing; The first lower guide and the second lower guide are integrally formed with the lower housing.
7. A contactor, wherein the contactor includes at least one modular breaking unit as described in any one of claims 1 to 6.
Citation Information
Patent Citations
A modular breaking unit and contactor having cradle guide assembly
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Low-voltage contactor
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