Series super capacitor with low-temperature injection molding shell
By using a low-temperature injection molded shell in supercapacitors to seal the series supercapacitors, the problem of insufficient sealing properties of existing supercapacitors is solved, and the sealing properties and service life of the capacitor body are significantly improved.
Patent Information
- Application Number
- CN202420372832.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing supercapacitors are insufficiently sealed, which may cause the electrolyte to leak outward, affecting electrical performance and life, and even causing damage to the equipment used.
The series supercapacitor is sealed by a low-temperature injection molding shell. The sealing performance is improved by connecting two or more capacitor monomers in series and covering them with the injection molding shell.
It effectively improves the sealing of the capacitor body, reduces the possibility of liquid leakage, and extends the service life.
Smart Images
Figure CN222580982U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of super capacitors, and more specifically, to a series super capacitor with a low-temperature injection-molded shell. Background Art
[0002] Supercapacitors are a type of capacitor with higher capacity than traditional capacitors. They are mainly composed of electrode materials, diaphragms, electrolytes and shells. After the electrode sheets and diaphragms are wound into a battery core, they are impregnated with electrolytes and packaged in aluminum shells to assemble into capacitors. They mainly store energy through the formation of a double charge layer at the interface between electrodes and electrolytes. They have the advantages of long cycle life, high power density and wide temperature range. They are widely used in electric toys, smart three-meters, consumer electronics, automotive electronics and other fields.
[0003] The sealing of existing supercapacitors is not high enough, and some electrolytes can still seep out. Leakage will seriously affect the electrical performance and life of the supercapacitor and even cause damage to the equipment using it.
[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a series supercapacitor with a low-temperature injection-molded housing.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a series supercapacitor with a low-temperature injection molded shell, including a capacitor body formed by a plurality of capacitor monomers connected in series, the capacitor monomers including an aluminum shell, a battery core, an end cap and a lead, the lead including a positive lead and a negative lead, and the positive leads and the negative leads of two adjacent capacitor monomers are connected in series through a connecting wire, and the capacitor body is formed by low-temperature injection molding with an injection molded shell covering its outer surface.
[0007] By adopting the above technical solution, two or more capacitor monomers are connected in series to increase the capacity of the capacitor body, and the capacitor body is sealed by an injection molded shell, thereby effectively improving the sealing between the end cover and the aluminum shell, thereby reducing the possibility of leakage during use and increasing the service life of the capacitor body.
[0008] The utility model is further configured as follows: a limiting member is arranged between two adjacent capacitor monomers, the limiting member includes a connecting block, and semicircular limiting rings are arranged on both sides of the connecting block facing the capacitor monomer, the limiting rings are attached to and covered on the surface of the aluminum shell, and also include positioning rings placed on the surface of the aluminum shell of the capacitor monomers at both ends, and the positioning ring and the limiting ring are combined into a circular ring that fully covers the circumference of the aluminum shell.
[0009] The utility model is further configured as follows: slots are arranged at both ends of the limit ring, and connectors inserted into the slots are arranged at both ends of the positioning ring to fix the limit ring and the positioning ring.
[0010] The utility model is further configured as follows: the inner surfaces of the limiting ring and the positioning ring are both provided with an anti-slip layer.
[0011] The utility model is further configured as follows: the injection molded shell completely covers the outer surface of the capacitor body, wherein a positive electrode lead and a negative electrode lead of the capacitor monomer located at two ends extend out of the injection molded shell.
[0012] The utility model is further configured as follows: the injection molded shell half covers the top of the capacitor body to seal the end cover and the upper half of the aluminum shell, wherein a positive lead and a negative lead of the capacitor monomer located at both ends extend out of the injection molded shell.
[0013] The utility model has the following beneficial effects: two or more capacitor monomers are connected in series, thereby increasing the capacity of the capacitor body, and the capacitor body is sealed by an injection-molded shell, thereby effectively improving the sealing between the end cover and the aluminum shell, thereby reducing the possibility of leakage during use and increasing the service life of the capacitor body. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment;
[0015] Figure 2 Schematic diagram of the three-dimensional structure of the capacitor body;
[0016] Figure 3 It is a schematic diagram of the structure of the limiter and the positioning ring;
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment.
[0018] Description of the drawings: 1. Capacitor monomer; 101. Aluminum shell; 102. End cover; 103. Lead wire; 104. Connecting wire; 2. Injection molded shell; 3. Limiting piece; 301. Connecting block; 302. Limiting ring; 4. Positioning ring; 5. Slot; 6. Connector; 7. Anti-slip layer. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Specific embodiment one:
[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a series supercapacitor with a low-temperature injection molded shell includes a capacitor body formed by three capacitor monomers 1 connected in series, the capacitor monomer 1 includes an aluminum shell 101, a battery cell, an end cover 102 and a lead 103, the lead 103 includes a positive lead 103 and a negative lead 103, and the positive lead 103 and the negative lead 103 of two adjacent capacitor monomers are connected in series through a connecting line 104, and the capacitor body is formed by low-temperature injection molding with an injection molded shell 2 covering its outer surface.
[0023] Two or more capacitor monomers 1 are connected in series to increase the capacity of the capacitor body, and the capacitor body is sealed by the injection molded shell 2, thereby effectively improving the sealing between the end cover 102 and the aluminum shell 101, thereby reducing the possibility of leakage during use and increasing the service life of the capacitor body.
[0024] A limiting member 3 is arranged between two adjacent capacitor monomers 1. The limiting member 3 includes a connecting block 301. The connecting block 301 is provided with semicircular limiting rings 302 on both sides facing the capacitor monomer 1. The limiting rings 302 are attached to and covered on the surface of the aluminum shell 101. The limiting rings 302 also include positioning rings 4 placed on the surface of the aluminum shell 101 of the capacitor monomers 1 at both ends. The positioning rings 4 and the limiting rings 302 are combined into a circular ring that fully covers the circumference of the aluminum shell 101. Before the injection molding work, the limiting member 3 and the positioning ring 4 are used to position a plurality of capacitor monomers 1, thereby ensuring the stability between the plurality of capacitor monomers 1 during the injection molding work, so as to ensure the smooth progress of the injection molding work.
[0025] Slots 5 are provided at both ends of the limiting ring 302, and connectors 6 inserted into the slots 5 are provided at both ends of the positioning ring 4 to fix the limiting ring 302 and the positioning ring 4. After arranging several limiting members 3 and capacitor monomers 1 in sequence, the positioning ring 4 is connected to the limiting rings 302 at both ends, thereby fixing several capacitor monomers 1.
[0026] The inner surfaces of the limiting ring 302 and the positioning ring 4 are both provided with an anti-skid layer 7, and the stability between the limiting ring 302, the positioning ring 4 and the aluminum shell 101 is ensured by the anti-skid layer 7, so as to improve the overall structural stability of the capacitor body.
[0027] The injection molded shell 2 completely covers the outer surface of the capacitor body, wherein a positive lead 103 and a negative lead 103 of the capacitor monomer 1 at both ends extend out of the injection molded shell 2. By fully covering the surface of the capacitor body with the injection molded shell 2, the sealing performance of the finished supercapacitor is greatly improved. Specific embodiment 2:
[0029] like Figure 4 As shown, the injection molded shell 2 is half-covered on the top of the capacitor body to seal the end cover 102 and the upper half of the aluminum shell 101, wherein a positive lead 103 and a negative lead 103 of the capacitor monomer 1 at both ends extend out of the injection molded shell 2. The half-covered injection molded shell 2 not only further seals the end cover 102, but also reduces the raw material cost during low-temperature injection molding.
[0030] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A series supercapacitor with a low temperature injection molded housing, characterized in that: The invention comprises a capacitor body formed by connecting a plurality of capacitor monomers (1) in series, wherein the capacitor monomer (1) comprises an aluminum shell (101), a battery core, an end cover (102) and a lead (103), wherein the lead (103) comprises a positive electrode lead and a negative electrode lead, and the positive electrode leads and the negative electrode leads of two adjacent capacitor monomers (1) are connected in series via a connecting line (104); and the capacitor body is provided with an injection molded shell (2) covering the outer surface thereof by low-temperature injection molding.
2. A series supercapacitor with a low-temperature injection molded housing according to claim 1, characterized in that: A limiting member (3) is arranged between two adjacent capacitor monomers (1), the limiting member (3) comprising a connecting block (301), and semi-circular limiting rings (302) are arranged on both sides of the connecting block (301) facing the capacitor monomers (1), the limiting rings (302) being attached to and covering the surface of the aluminum shell (101), and also comprising a positioning ring (4) arranged on the surface of the aluminum shell (101) of the capacitor monomers (1) at both ends, the positioning ring (4) and the limiting ring (302) being combined into a circular ring that completely covers the circumference of the aluminum shell (101).
3. A series supercapacitor with a low-temperature injection molded housing according to claim 2, characterized in that: Slots (5) are provided at both ends of the limiting ring (302), and plug-in components (6) inserted into the slots (5) are provided at both ends of the positioning ring (4) to fix the limiting ring (302) and the positioning ring (4).
4. A series-connected supercapacitor with a low-temperature injection-molded housing according to claim 3, characterized in that: The inner surfaces of the limiting ring (302) and the positioning ring (4) are both provided with an anti-slip layer (7).
5. The series-connected supercapacitor with a low-temperature injection-molded housing according to claim 1, characterized in that: The injection molded shell (2) completely covers the outer surface of the capacitor body, wherein a positive electrode lead (103) and a negative electrode lead (103) of the capacitor monomer (1) at two ends extend out of the injection molded shell (2).
6. A series-connected supercapacitor with a low-temperature injection-molded housing according to claim 1, characterized in that: The injection molded shell (2) half covers the top of the capacitor body to seal the end cover (102) and the upper half of the aluminum shell (101), wherein a positive electrode lead and a negative electrode lead of the capacitor monomer (1) at both ends extend out of the injection molded shell (2).