Novel square shell capacitor
By designing the step surface in the shell of the new square-shell capacitor to match the shape of the capacitor core, the problem of high amount of potting material used during the packaging of existing capacitors is solved, and the effect of reducing the amount of potting material and reducing production costs is achieved.
Patent Information
- Application Number
- CN202420967568.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
During the packaging of existing capacitors, due to the mismatch of the shell and the capacitor core, the amount of potting material is used, which increases production costs.
A new square-shell capacitor is designed, whose housing matches the outer shape of the capacitor core by forming a step surface at the lead-out end position, thereby reducing the amount of potting material.
It effectively reduces the amount of potting material, reduces production costs, and does not affect the assembly process of the capacitor.
Smart Images
Figure CN222440362U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capacitors, in particular to a novel square shell capacitor. Background Art
[0002] Capacitors play an important role in circuits such as tuning, bypassing, coupling, and filtering.
[0003] Currently, most capacitor shells are rectangular in shape, while the capacitor core is nearly elliptical in shape. After the capacitor core is installed in the shell, there is a large gap between the capacitor core and the inner wall of the shell. Therefore, there is a problem of large amount of potting material used during packaging, resulting in high production costs. Utility Model Content
[0004] The main purpose of the utility model is to provide a novel square shell capacitor, aiming to provide a novel square shell capacitor which can reduce the shell size without affecting the assembly and thus reduce the amount of potting material.
[0005] In order to achieve the above-mentioned purpose, the utility model proposes a novel square shell capacitor, and the novel square shell capacitor comprises:
[0006] A housing, wherein the housing is enclosed by four side plates and a bottom plate to form a receiving cavity with a top opening, wherein two side plates arranged opposite to each other are defined as lead-out terminal assembly plates, and the lead-out terminal assembly plates form a step surface in a horizontal direction or a vertical direction;
[0007] A capacitor core, the capacitor core comprising a core body and lead ends arranged on both sides of the core body, the step facing the position of the lead ends plays a role of avoidance, and the lead ends extend upward and extend out of the top opening;
[0008] A potting material is filled in the accommodating cavity and wraps the core body therein.
[0009] Optionally, the lead-out terminal assembly plate is defined as a first inner plate and a first outer plate in sequence in the horizontal direction, the step surface is formed between the first inner plate and the first outer plate, and the lead-out terminal corresponds to the first outer plate in position.
[0010] Optionally, the two lead-out terminals are symmetrically arranged or staggered.
[0011] Optionally, the lead-out terminal assembly plate is defined as a second inner plate and a second outer plate in sequence in the vertical direction, the step surface is formed between the second inner plate and the second outer plate, and the lead-out terminal corresponds to the second outer plate in position.
[0012] Optionally, an arc transition is provided between the side plate and the bottom plate where the step surface is not provided.
[0013] Optionally, a supporting foot is protruding downward from the bottom of the lead-out terminal assembly plate, and a bottom end surface of the supporting foot is flush with the bottom plate.
[0014] Optionally, the housing is made of plastic.
[0015] The technical solution of the utility model includes a shell, a capacitor core and a potting material. The shell forms a step surface at the position corresponding to the lead-out terminal. The step surface plays a role of avoiding the lead-out terminal, and can avoid in the horizontal direction or in the vertical direction. The potting material is filled in the accommodating cavity and wraps the core body therein. Since the shell is adjusted in size according to the external shape of the capacitor core to reduce the potting material, the technical problem of the existing technology that the amount of potting material used during packaging is large and the production cost is high is effectively solved, thereby achieving the technical effect of reducing the size of the shell without affecting the assembly and reducing the amount of potting material. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the second embodiment of the novel square shell capacitor of the utility model;
[0017] Figure 2 This is a schematic diagram of the split structure of the second embodiment of the novel square shell capacitor of the utility model;
[0018] Figure 3 It is a top view schematic diagram of the second embodiment of the novel square shell capacitor of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the third embodiment of the novel square shell capacitor of the utility model;
[0020] Figure 5 This is a schematic diagram of the split structure of the third embodiment of the novel square shell capacitor of the utility model;
[0021] Figure 6 It is a cross-sectional schematic diagram of a third embodiment of the novel square shell capacitor of the utility model;
[0022] Figure 7 This is a schematic structural diagram of the fifth embodiment of the novel square shell capacitor of the utility model;
[0023] Figure 8 This is a schematic structural diagram of a sixth embodiment of the novel square shell capacitor of the utility model;
[0024] Description of Figure Numbers:
[0025] A novel square shell capacitor 100; a shell 10; a lead-out terminal assembly plate 11; a first inner plate 111; a first outer plate 112; a second inner plate 113; a second outer plate 114; a capacitor core 20; a core body 21; and a lead-out terminal 22. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.
[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0030] The utility model provides a novel square shell capacitor 100 .
[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0032] In the embodiments of the present invention, Figures 1 to 8As shown, the novel square shell capacitor 100 includes a shell 10, a capacitor core 20 and a potting material, wherein the shell 10 is enclosed by four side plates and a bottom plate to form a receiving cavity with a top opening, and the two side plates arranged opposite to each other are defined as lead-out terminal assembly plates 11, and the lead-out terminal assembly plates 11 form a step surface in the horizontal direction or the vertical direction; the capacitor core 20 includes a core body 21 and lead-out terminals 22 arranged on both sides of the core body 21, and the step surface plays a role in avoiding the position of the lead-out terminals 22, and the lead-out terminals 22 extend upward and extend out of the top opening; the potting material is filled in the receiving cavity and wraps the core body 21 therein.
[0033] The shell 10 of the utility model is an integrally formed structure, the cross-sectional shape of the core 21 is similar to an ellipse, and the lead-out terminal 22 is protruded from the two opposite end faces of the core 21 by welding connection, that is, the position where the lead-out terminal 22 is located requires a larger assembly space. The traditional shell is designed according to the maximum assembly size required by the core 21 to form a square shell structure. The utility model is designed according to the external dimensions of the capacitor core 20. Under the premise of not affecting the assembly, the assembly space is increased at the position of the lead-out terminal 22, and the assembly space is reduced at the position where there is no lead-out terminal 22, so that the side plate corresponding to the lead-out terminal 22, that is, the lead-out terminal assembly plate 11 forms a step surface. The step surface is set according to the position of the lead-out terminal 22, and can be a step surface in the horizontal direction or a step surface in the vertical direction. The lead-out terminal assembly plate 11 with a step surface can better fit the side where the lead-out terminal 22 is located, thereby reducing the gap between the core 21 and the shell 10, reducing the amount of potting material used, and reducing production costs.
[0034] The technical solution of the utility model includes a housing 10, a capacitor core 20 and a potting material. The housing 10 forms a step surface at a position corresponding to the lead-out terminal 22. The step surface plays a role of avoiding the lead-out terminal 22, and can avoid in the horizontal direction or in the vertical direction. The potting material is filled in the accommodating cavity and wraps the core 21 therein. Since the housing 10 is adjusted in size according to the external shape of the capacitor core 20 to reduce the potting material, the technical problem of the high production cost caused by the large amount of potting material used during packaging in the prior art is effectively solved, thereby achieving the technical effect of reducing the size of the housing 10 without affecting the assembly and reducing the amount of potting material.
[0035] In the present utility model, the novel square-shell capacitor 100 has six implementation modes, that is, the position of the step surface of the lead-out terminal mounting plate 11 is adjusted according to the position of the lead-out terminal 22 .
[0036] The utility model proposes a first embodiment (not shown in the figure), which defines that the lead-out terminal assembly plate 11 is sequentially divided into a first inner plate 111 and a first outer plate 112 in the horizontal direction, a step surface is formed between the first inner plate 111 and the first outer plate 112, and the lead-out terminal 22 corresponds to the first outer plate 112. The two lead-out terminal assembly plates 11 of this embodiment are symmetrically arranged, that is, the two first inner plates 111 are arranged opposite to each other, and the two first outer plates 112 are also arranged opposite to each other. Therefore, the housing 10 structure is suitable for the capacitor core 20 with two lead-out terminals 22 symmetrically arranged.
[0037] The utility model proposes a second embodiment, such as Figures 1 to 3 As shown, the lead-out terminal assembly plate 11 is defined as a first inner plate 111 and a first outer plate 112 in the horizontal direction, a step surface is formed between the first inner plate 111 and the first outer plate 112, and the lead-out terminal 22 corresponds to the first outer plate 112. The difference between this embodiment and the first embodiment is that the two lead-out terminal assembly plates 11 are asymmetrically arranged, that is, the first inner plate 111 on one side is arranged opposite to the first outer plate 112 on the other side, therefore, the housing 10 structure is suitable for a capacitor core 20 with two lead-out terminals 22 staggered.
[0038] The utility model proposes a third embodiment, such as Figures 4 to 6 As shown, the lead-out terminal assembly plate 11 is defined as the second inner plate 113 and the second outer plate 114 in the vertical direction, a step surface is formed between the second inner plate 113 and the second outer plate 114, and the lead-out terminal 22 corresponds to the second outer plate 114. The structure of the housing 10 only requires the setting height of the lead-out terminal 22, that is, the lowest point of the lead-out terminal 22 is also located at the position where the second outer plate 114 is located, and the lead-out terminals 22 on opposite sides can be symmetrically arranged or staggered.
[0039] The utility model proposes a fourth embodiment (not shown in the figure), which is based on the first embodiment, and the side plate without the step surface is transitioned into an arc shape with the bottom plate. The arc-shaped bottom surface can better adapt to the shape of the core 21, reduce the gap between the core 21 and the shell 10, and thus reduce the amount of potting material.
[0040] The utility model proposes a fifth embodiment, such as Figure 7 As shown, this embodiment is based on the second embodiment, and the arc transition between the side plate without the step surface and the bottom plate is provided. The arc-shaped bottom surface can better adapt to the shape of the core 21, reduce the gap between the core 21 and the shell 10, and thus reduce the amount of potting material.
[0041] The utility model proposes a sixth embodiment, such as Figure 8As shown, this embodiment is based on the third embodiment, and the side plate without the step surface is transitioned into an arc shape with the bottom plate. The arc-shaped bottom surface can better adapt to the shape of the core 21, reduce the gap between the core 21 and the shell 10, and thus reduce the amount of potting material.
[0042] For the fourth to sixth embodiments, in order to place the capacitor more stably, a supporting foot is protruding downward from the bottom of the lead-out terminal assembly plate 11, and the bottom end surface of the supporting foot is flush with the bottom plate, that is, when viewed from the top view, the two supporting feet and the bottom plate together form an I-shaped supporting surface. The utility model increases the bottom contact area by adding supporting feet, thereby achieving stable placement of the capacitor.
[0043] In the above embodiment of the present invention, the housing 10 is made of plastic. Plastic material has the characteristics of being easy to shape and low in cost.
[0044] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A new type of square shell capacitor, characterized in that: The novel square shell capacitor comprises: A housing, wherein the housing is enclosed by four side plates and a bottom plate to form a receiving cavity with a top opening, wherein two side plates arranged opposite to each other are defined as lead-out terminal assembly plates, and the lead-out terminal assembly plates form a step surface in a horizontal direction or a vertical direction; A capacitor core, the capacitor core comprising a core body and lead ends arranged on both sides of the core body, the step facing the position of the lead ends plays a role of avoidance, and the lead ends extend upward and extend out of the top opening; A potting material is filled in the accommodating cavity and wraps the core body therein.
2. The novel square shell capacitor according to claim 1 is characterized in that: The lead-out terminal assembly plate is defined as a first inner plate and a first outer plate in sequence in the horizontal direction, the step surface is formed between the first inner plate and the first outer plate, and the lead-out terminal corresponds to the first outer plate in position.
3. The novel square shell capacitor as claimed in claim 2, characterized in that: The two lead-out terminals are symmetrically arranged or staggeredly arranged.
4. The novel square shell capacitor according to claim 1, characterized in that: The lead-out terminal assembly plate is defined as a second inner plate and a second outer plate in sequence in the vertical direction, the step surface is formed between the second inner plate and the second outer plate, and the lead-out terminal corresponds to the second outer plate in position.
5. The novel square shell capacitor according to any one of claims 1 to 4, characterized in that: There is an arc transition between the side plate and the bottom plate where the step surface is not provided.
6. The novel square shell capacitor as claimed in claim 5, characterized in that: A supporting foot is protruded downwardly from the bottom of the lead-out terminal assembly plate, and the bottom end surface of the supporting foot is flush with the bottom plate.
7. The novel square shell capacitor according to claim 5, characterized in that: The housing is made of plastic.